This standard has been reviewed* and then confirmed in 2009.
Principle: Aqueous extraction of a test portion, followed by the evaporation and drying at 102 +/-2 degrees centigrade, and sulfating and ashing of the residue at 800 degrees centigrade, to yield the water-soluble inorganic matter. Treatment of the residue with hydrochloric acid, and titration with standard volumetric disodium ethylenedinitrilotetraacetate solution.
Edition: 1 (Monolingual) ICS: 59.140.30 Status: Withdrawn Stage: 95.99 (2009-09-24) TC/SC: IULTCS Number of Pages:
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